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The VL2 P vertical turning center from Emag features a 160-mm chuck diameter and is suitable for job shops, parts manufacturers and automotive industry applications. The vertical turning center is equipped with two spindles working in pendular mode to complete-machine 100-mm-diameter workpieces in two setups. While one spindle machines the first side of the workpiece, the second one uses the pick-up principle to load itself. This ensures that the next raw part is ready to be machined as soon as the first workpiece is completed and the turret “swings over” to the second spindle. This method is said to reduce chip-to-chip times.
The center features automation equipment as an integral part of its compact machine design. A recirculating chain conveyor equipped with workpiece carriers move components. This ensures that workpieces can be moved directly to the pick-up station where they are machined. Loading takes place outside the machining area. The passing conveyor enables finish-machined components to be removed and raw parts to be loaded at the front of the machine.
The turning center’s base is cast in Mineralit, a polymer concrete that is said to offer better vibration damping than grey cast iron. Decreased vibration leads to a better surface finish and increases tool life, the company says.
Robotic Cell Cuts Cycle Time, Improves Part Quality
Sew-Eurodrive Inc. worked with Okuma America’s authorized systems dealer, Gosiger Automation, to design an automated cell that includes an automatic, magazine bar feeder that loads 6-ft. lengths of barstock into the machine. The shop also switched to an Okuma twin spindle, twin turret turning center so all of the machining operations are completed in one setup, thus eliminating additional fixtures and operator intervention. The resultant system reduces cycle times and requires much less operator involvement. As a result, production time per part was more than cut in half – from about 5 minutes to 2 minutes, 20 seconds.